Ramona Singer was asked to leave a dinner at Philippe on Wednesday.

The “Real Housewife” and a male pal crashed a private dinner as part of the venue’s “Golden Revolution” party, and Singer’s guest offered to splash his cash at the open-bar affair.

“He thought it was a bottle-service situation. He kept saying, ‘We can buy nine tables!’ They didn’t realize it was an invite-only seated dinner,” a spy said. They got the message and went downstairs.

We’re told Singer’s co-star Carole Radziwill was due to attend, but skipped because “she was in a postpartum Hillary [Clinton] depression.”

Also there were Derrick Rose, Pia Wurtzbach, Nicole Hanley, Nicole Miller, John Franco and Bruce Harper.